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<div id="projectbrief">Windows Win32 API using Standard C++</div>
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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_6f50bb204833d887b928571856c82fbe.html">WinStd</a></li> </ul>
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<div class="headertitle"><div class="title">WinSock2.h</div></div>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> SPDX-License-Identifier: MIT</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> Copyright © 1991-2022 Amebis</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> Copyright © 2016 GÉANT</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment">*/</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span> </div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span> </div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#pragma once</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> </div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include &quot;Common.h&quot;</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include &lt;WinSock2.h&gt;</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="preprocessor">#include &lt;ws2def.h&gt;</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include &lt;WS2tcpip.h&gt;</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> </div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="keyword">namespace </span>winstd</div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span>{</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> </div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"><a class="line" href="classwinstd_1_1ws2__runtime__error.html"> 24</a></span> <span class="keyword">class </span><a class="code hl_class" href="classwinstd_1_1ws2__runtime__error.html">ws2_runtime_error</a> : <span class="keyword">public</span> <a class="code hl_class" href="classwinstd_1_1num__runtime__error.html">num_runtime_error</a>&lt;int&gt;</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> {</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"><a class="line" href="classwinstd_1_1ws2__runtime__error.html#aa6ed38106310751800eca077c2fcb71a"> 33</a></span> <a class="code hl_function" href="classwinstd_1_1ws2__runtime__error.html#aa6ed38106310751800eca077c2fcb71a">ws2_runtime_error</a>(_In_ <a class="code hl_typedef" href="classwinstd_1_1num__runtime__error.html#a6fa2de87d0151b3ad9cac58f838852e0">error_type</a> num, _In_ <span class="keyword">const</span> std::string&amp; <a class="code hl_function" href="classwinstd_1_1ws2__runtime__error.html#af6984de4ac18e732a6844f379d67c52f">msg</a>) : <a class="code hl_class" href="classwinstd_1_1num__runtime__error.html">num_runtime_error</a>&lt;int&gt;(num, <a class="code hl_function" href="classwinstd_1_1ws2__runtime__error.html#af6984de4ac18e732a6844f379d67c52f">msg</a>)</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> {</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> }</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> </div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"><a class="line" href="classwinstd_1_1ws2__runtime__error.html#a0f57437dbc7c87ac05230a5a5458846b"> 43</a></span> <a class="code hl_function" href="classwinstd_1_1ws2__runtime__error.html#a0f57437dbc7c87ac05230a5a5458846b">ws2_runtime_error</a>(_In_ <a class="code hl_typedef" href="classwinstd_1_1num__runtime__error.html#a6fa2de87d0151b3ad9cac58f838852e0">error_type</a> num, _In_opt_z_ <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code hl_function" href="classwinstd_1_1ws2__runtime__error.html#af6984de4ac18e732a6844f379d67c52f">msg</a> = <span class="keyword">nullptr</span>) : <a class="code hl_class" href="classwinstd_1_1num__runtime__error.html">num_runtime_error</a>&lt;int&gt;(num, <a class="code hl_function" href="classwinstd_1_1ws2__runtime__error.html#af6984de4ac18e732a6844f379d67c52f">msg</a>)</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> {</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> }</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> </div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"><a class="line" href="classwinstd_1_1ws2__runtime__error.html#ae7914ed1c76d543399992573bc580b4e"> 52</a></span> <a class="code hl_function" href="classwinstd_1_1ws2__runtime__error.html#ae7914ed1c76d543399992573bc580b4e">ws2_runtime_error</a>(_In_ <span class="keyword">const</span> std::string&amp; <a class="code hl_function" href="classwinstd_1_1ws2__runtime__error.html#af6984de4ac18e732a6844f379d67c52f">msg</a>) : <a class="code hl_class" href="classwinstd_1_1num__runtime__error.html">num_runtime_error</a>&lt;int&gt;(WSAGetLastError(), <a class="code hl_function" href="classwinstd_1_1ws2__runtime__error.html#af6984de4ac18e732a6844f379d67c52f">msg</a>)</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> {</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> }</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> </div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"><a class="line" href="classwinstd_1_1ws2__runtime__error.html#a2e54221cc0f78724af416f9af1415267"> 61</a></span> <a class="code hl_function" href="classwinstd_1_1ws2__runtime__error.html#a2e54221cc0f78724af416f9af1415267">ws2_runtime_error</a>(_In_opt_z_ <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code hl_function" href="classwinstd_1_1ws2__runtime__error.html#af6984de4ac18e732a6844f379d67c52f">msg</a> = <span class="keyword">nullptr</span>) : <a class="code hl_class" href="classwinstd_1_1num__runtime__error.html">num_runtime_error</a>&lt;int&gt;(WSAGetLastError(), <a class="code hl_function" href="classwinstd_1_1ws2__runtime__error.html#af6984de4ac18e732a6844f379d67c52f">msg</a>)</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> {</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> }</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> </div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"><a class="line" href="classwinstd_1_1ws2__runtime__error.html#af6984de4ac18e732a6844f379d67c52f"> 70</a></span> <a class="code hl_typedef" href="group___win_std_general.html#ga8081292a94f5d070e644bdc90662d1fc">tstring</a> <a class="code hl_function" href="classwinstd_1_1ws2__runtime__error.html#af6984de4ac18e732a6844f379d67c52f">msg</a>(_In_opt_ DWORD dwLanguageId = 0)<span class="keyword"> const</span></div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <a class="code hl_typedef" href="group___win_std_general.html#ga8081292a94f5d070e644bdc90662d1fc">tstring</a> str;</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="keywordflow">if</span> (<a class="code hl_function" href="group___win_std_str_format.html#ga78bf19793ce080f2826f56f228d64623">FormatMessage</a>(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, 0, <a class="code hl_variable" href="classwinstd_1_1num__runtime__error.html#a865b8400a5a5a962c3068bf55f022d1f">m_num</a>, dwLanguageId, str, NULL)) {</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> <span class="comment">// Stock Windows error messages contain CRLF. Well... Trim all the trailing white space.</span></div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> str.erase(str.find_last_not_of(_T(<span class="stringliteral">&quot; \t\n\r\f\v&quot;</span>)) + 1);</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> } <span class="keywordflow">else</span></div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <a class="code hl_function" href="group___win_std_str_format.html#gac397f655a858a069b3e521940af64331">sprintf</a>(str, <a class="code hl_variable" href="classwinstd_1_1num__runtime__error.html#a865b8400a5a5a962c3068bf55f022d1f">m_num</a> &gt;= 0x10000 ? _T(<span class="stringliteral">&quot;Error 0x%X&quot;</span>) : _T(<span class="stringliteral">&quot;Error %u&quot;</span>), <a class="code hl_variable" href="classwinstd_1_1num__runtime__error.html#a865b8400a5a5a962c3068bf55f022d1f">m_num</a>);</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="keywordflow">return</span> str;</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> }</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> };</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> </div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> </div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> </div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span><span class="preprocessor">#if (NTDDI_VERSION &gt;= NTDDI_WINXPSP2) || (_WIN32_WINNT &gt;= 0x0502)</span></div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> </div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"><a class="line" href="classwinstd_1_1addrinfo.html"> 94</a></span> <span class="keyword">class </span><a class="code hl_class" href="classwinstd_1_1addrinfo.html">addrinfo</a> : <span class="keyword">public</span> <a class="code hl_class" href="classwinstd_1_1handle.html">handle</a>&lt;PADDRINFOA, NULL&gt;</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> {</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <a class="code hl_define" href="group___win_std_sys_handles.html#ga419efffd12b5c96abc8a275ba375ca60">WINSTD_HANDLE_IMPL</a>(<a class="code hl_class" href="classwinstd_1_1addrinfo.html">addrinfo</a>, NULL)</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> </div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"><a class="line" href="classwinstd_1_1addrinfo.html#aaa7a9365cde194bb9f54a96ea04f9883"> 104</a></span> <span class="keyword">virtual</span> <a class="code hl_function" href="classwinstd_1_1addrinfo.html#aaa7a9365cde194bb9f54a96ea04f9883">~addrinfo</a>()</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> {</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="classwinstd_1_1handle.html#aabde3f16fd98b06b3b0282ef7806eb59">m_h</a> != <a class="code hl_variable" href="group___win_std_sys_handles.html#gacf43e306968474166474090690857e1c">invalid</a>)</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <a class="code hl_function" href="classwinstd_1_1addrinfo.html#a279ad84ce2877b22797eedbec80cd55f">free_internal</a>();</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> }</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> </div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="keyword">protected</span>:</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"><a class="line" href="classwinstd_1_1addrinfo.html#a279ad84ce2877b22797eedbec80cd55f"> 116</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="classwinstd_1_1addrinfo.html#a279ad84ce2877b22797eedbec80cd55f">free_internal</a>() noexcept<span class="keyword"> override</span></div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> FreeAddrInfoA(<a class="code hl_variable" href="classwinstd_1_1handle.html#aabde3f16fd98b06b3b0282ef7806eb59">m_h</a>);</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> }</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> };</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> </div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"><a class="line" href="classwinstd_1_1waddrinfo.html"> 127</a></span> <span class="keyword">class </span><a class="code hl_class" href="classwinstd_1_1waddrinfo.html">waddrinfo</a> : <span class="keyword">public</span> <a class="code hl_class" href="classwinstd_1_1handle.html">handle</a>&lt;PADDRINFOW, NULL&gt;</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> {</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <a class="code hl_define" href="group___win_std_sys_handles.html#ga419efffd12b5c96abc8a275ba375ca60">WINSTD_HANDLE_IMPL</a>(<a class="code hl_class" href="classwinstd_1_1waddrinfo.html">waddrinfo</a>, NULL)</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> </div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"><a class="line" href="classwinstd_1_1waddrinfo.html#a2b1209904bd7486acefd833ff5c4bcca"> 137</a></span> <span class="keyword">virtual</span> <a class="code hl_function" href="classwinstd_1_1waddrinfo.html#a2b1209904bd7486acefd833ff5c4bcca">~waddrinfo</a>()</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> {</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="classwinstd_1_1handle.html#aabde3f16fd98b06b3b0282ef7806eb59">m_h</a> != <a class="code hl_variable" href="group___win_std_sys_handles.html#gacf43e306968474166474090690857e1c">invalid</a>)</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <a class="code hl_function" href="classwinstd_1_1waddrinfo.html#a479f7602b60a4c4205a9327f91e25f66">free_internal</a>();</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> }</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> </div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> <span class="keyword">protected</span>:</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"><a class="line" href="classwinstd_1_1waddrinfo.html#a479f7602b60a4c4205a9327f91e25f66"> 149</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="classwinstd_1_1waddrinfo.html#a479f7602b60a4c4205a9327f91e25f66">free_internal</a>() noexcept<span class="keyword"> override</span></div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> FreeAddrInfoW(<a class="code hl_variable" href="classwinstd_1_1handle.html#aabde3f16fd98b06b3b0282ef7806eb59">m_h</a>);</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> }</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> };</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> </div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span><span class="preprocessor">#ifdef _UNICODE</span></div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="keyword">typedef</span> waddrinfo <a class="code hl_typedef" href="group___win_sock2_a_p_i.html#ga73a783d5ebf3d1af2a565cb78062b5b6">taddrinfo</a>;</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span><span class="preprocessor">#else</span></div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"><a class="line" href="group___win_sock2_a_p_i.html#ga73a783d5ebf3d1af2a565cb78062b5b6"> 161</a></span> <span class="keyword">typedef</span> <a class="code hl_class" href="classwinstd_1_1addrinfo.html">addrinfo</a> <a class="code hl_typedef" href="group___win_sock2_a_p_i.html#ga73a783d5ebf3d1af2a565cb78062b5b6">taddrinfo</a>;</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> </div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> </div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span>}</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> </div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> </div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span><span class="preprocessor">#pragma warning(push)</span></div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span><span class="preprocessor">#pragma warning(disable: 4505) </span><span class="comment">// Don&#39;t warn on unused code</span></div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> </div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"><a class="line" href="group___win_sock2_a_p_i.html#gae9f6e09e2e81a57135dc30bc999d27af"> 176</a></span><span class="keyword">static</span> INT <a class="code hl_function" href="group___win_sock2_a_p_i.html#gae9f6e09e2e81a57135dc30bc999d27af">GetAddrInfoA</a>(</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> _In_opt_ PCSTR pNodeName,</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> _In_opt_ PCSTR pServiceName,</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> _In_opt_ <span class="keyword">const</span> ADDRINFOA *pHints,</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> _Inout_ <a class="code hl_class" href="classwinstd_1_1addrinfo.html">winstd::addrinfo</a> &amp;result)</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span>{</div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> PADDRINFOA h;</div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> INT iResult = <a class="code hl_function" href="group___win_sock2_a_p_i.html#gae9f6e09e2e81a57135dc30bc999d27af">GetAddrInfoA</a>(pNodeName, pServiceName, pHints, &amp;h);</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> <span class="keywordflow">if</span> (iResult == 0)</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> result.attach(h);</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> <span class="keywordflow">return</span> iResult;</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span>}</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> </div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"><a class="line" href="group___win_sock2_a_p_i.html#gad222deae09d76241e018a2e350aa1ec9"> 194</a></span><span class="keyword">static</span> INT <a class="code hl_function" href="group___win_sock2_a_p_i.html#gad222deae09d76241e018a2e350aa1ec9">GetAddrInfoW</a>(</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> _In_opt_ PCWSTR pNodeName,</div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> _In_opt_ PCWSTR pServiceName,</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> _In_opt_ <span class="keyword">const</span> ADDRINFOW *pHints,</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> _Inout_ <a class="code hl_class" href="classwinstd_1_1waddrinfo.html">winstd::waddrinfo</a> &amp;result)</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span>{</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> PADDRINFOW h;</div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> INT iResult = <a class="code hl_function" href="group___win_sock2_a_p_i.html#gad222deae09d76241e018a2e350aa1ec9">GetAddrInfoW</a>(pNodeName, pServiceName, pHints, &amp;h);</div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> <span class="keywordflow">if</span> (iResult == 0)</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> result.attach(h);</div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> <span class="keywordflow">return</span> iResult;</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span>}</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> </div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span><span class="preprocessor">#pragma warning(pop)</span></div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> </div>
<div class="ttc" id="aclasswinstd_1_1addrinfo_html"><div class="ttname"><a href="classwinstd_1_1addrinfo.html">winstd::addrinfo</a></div><div class="ttdoc">SID wrapper class.</div><div class="ttdef"><b>Definition:</b> WinSock2.h:95</div></div>
<div class="ttc" id="aclasswinstd_1_1addrinfo_html_a279ad84ce2877b22797eedbec80cd55f"><div class="ttname"><a href="classwinstd_1_1addrinfo.html#a279ad84ce2877b22797eedbec80cd55f">winstd::addrinfo::free_internal</a></div><div class="ttdeci">void free_internal() noexcept override</div><div class="ttdoc">Frees address information.</div><div class="ttdef"><b>Definition:</b> WinSock2.h:116</div></div>
<div class="ttc" id="aclasswinstd_1_1addrinfo_html_aaa7a9365cde194bb9f54a96ea04f9883"><div class="ttname"><a href="classwinstd_1_1addrinfo.html#aaa7a9365cde194bb9f54a96ea04f9883">winstd::addrinfo::~addrinfo</a></div><div class="ttdeci">virtual ~addrinfo()</div><div class="ttdoc">Frees address information.</div><div class="ttdef"><b>Definition:</b> WinSock2.h:104</div></div>
<div class="ttc" id="aclasswinstd_1_1handle_html"><div class="ttname"><a href="classwinstd_1_1handle.html">winstd::handle</a></div><div class="ttdoc">Base abstract template class to support generic object handle keeping.</div><div class="ttdef"><b>Definition:</b> Common.h:607</div></div>
<div class="ttc" id="aclasswinstd_1_1handle_html_aabde3f16fd98b06b3b0282ef7806eb59"><div class="ttname"><a href="classwinstd_1_1handle.html#aabde3f16fd98b06b3b0282ef7806eb59">winstd::handle&lt; PADDRINFOA, NULL &gt;::m_h</a></div><div class="ttdeci">handle_type m_h</div><div class="ttdoc">Object handle.</div><div class="ttdef"><b>Definition:</b> Common.h:858</div></div>
<div class="ttc" id="aclasswinstd_1_1num__runtime__error_html"><div class="ttname"><a href="classwinstd_1_1num__runtime__error.html">winstd::num_runtime_error</a></div><div class="ttdoc">Numerical runtime error.</div><div class="ttdef"><b>Definition:</b> Common.h:1003</div></div>
<div class="ttc" id="aclasswinstd_1_1num__runtime__error_html_a6fa2de87d0151b3ad9cac58f838852e0"><div class="ttname"><a href="classwinstd_1_1num__runtime__error.html#a6fa2de87d0151b3ad9cac58f838852e0">winstd::num_runtime_error&lt; int &gt;::error_type</a></div><div class="ttdeci">int error_type</div><div class="ttdoc">Error number type.</div><div class="ttdef"><b>Definition:</b> Common.h:1005</div></div>
<div class="ttc" id="aclasswinstd_1_1num__runtime__error_html_a865b8400a5a5a962c3068bf55f022d1f"><div class="ttname"><a href="classwinstd_1_1num__runtime__error.html#a865b8400a5a5a962c3068bf55f022d1f">winstd::num_runtime_error&lt; int &gt;::m_num</a></div><div class="ttdeci">error_type m_num</div><div class="ttdoc">Numeric error code.</div><div class="ttdef"><b>Definition:</b> Common.h:1041</div></div>
<div class="ttc" id="aclasswinstd_1_1waddrinfo_html"><div class="ttname"><a href="classwinstd_1_1waddrinfo.html">winstd::waddrinfo</a></div><div class="ttdoc">SID wrapper class.</div><div class="ttdef"><b>Definition:</b> WinSock2.h:128</div></div>
<div class="ttc" id="aclasswinstd_1_1waddrinfo_html_a2b1209904bd7486acefd833ff5c4bcca"><div class="ttname"><a href="classwinstd_1_1waddrinfo.html#a2b1209904bd7486acefd833ff5c4bcca">winstd::waddrinfo::~waddrinfo</a></div><div class="ttdeci">virtual ~waddrinfo()</div><div class="ttdoc">Frees address information.</div><div class="ttdef"><b>Definition:</b> WinSock2.h:137</div></div>
<div class="ttc" id="aclasswinstd_1_1waddrinfo_html_a479f7602b60a4c4205a9327f91e25f66"><div class="ttname"><a href="classwinstd_1_1waddrinfo.html#a479f7602b60a4c4205a9327f91e25f66">winstd::waddrinfo::free_internal</a></div><div class="ttdeci">void free_internal() noexcept override</div><div class="ttdoc">Frees address information.</div><div class="ttdef"><b>Definition:</b> WinSock2.h:149</div></div>
<div class="ttc" id="aclasswinstd_1_1ws2__runtime__error_html"><div class="ttname"><a href="classwinstd_1_1ws2__runtime__error.html">winstd::ws2_runtime_error</a></div><div class="ttdoc">WinSock2 runtime error.</div><div class="ttdef"><b>Definition:</b> WinSock2.h:25</div></div>
<div class="ttc" id="aclasswinstd_1_1ws2__runtime__error_html_a0f57437dbc7c87ac05230a5a5458846b"><div class="ttname"><a href="classwinstd_1_1ws2__runtime__error.html#a0f57437dbc7c87ac05230a5a5458846b">winstd::ws2_runtime_error::ws2_runtime_error</a></div><div class="ttdeci">ws2_runtime_error(error_type num, const char *msg=nullptr)</div><div class="ttdoc">Constructs an exception.</div><div class="ttdef"><b>Definition:</b> WinSock2.h:43</div></div>
<div class="ttc" id="aclasswinstd_1_1ws2__runtime__error_html_a2e54221cc0f78724af416f9af1415267"><div class="ttname"><a href="classwinstd_1_1ws2__runtime__error.html#a2e54221cc0f78724af416f9af1415267">winstd::ws2_runtime_error::ws2_runtime_error</a></div><div class="ttdeci">ws2_runtime_error(const char *msg=nullptr)</div><div class="ttdoc">Constructs an exception using WSAGetLastError()</div><div class="ttdef"><b>Definition:</b> WinSock2.h:61</div></div>
<div class="ttc" id="aclasswinstd_1_1ws2__runtime__error_html_aa6ed38106310751800eca077c2fcb71a"><div class="ttname"><a href="classwinstd_1_1ws2__runtime__error.html#aa6ed38106310751800eca077c2fcb71a">winstd::ws2_runtime_error::ws2_runtime_error</a></div><div class="ttdeci">ws2_runtime_error(error_type num, const std::string &amp;msg)</div><div class="ttdoc">Constructs an exception.</div><div class="ttdef"><b>Definition:</b> WinSock2.h:33</div></div>
<div class="ttc" id="aclasswinstd_1_1ws2__runtime__error_html_ae7914ed1c76d543399992573bc580b4e"><div class="ttname"><a href="classwinstd_1_1ws2__runtime__error.html#ae7914ed1c76d543399992573bc580b4e">winstd::ws2_runtime_error::ws2_runtime_error</a></div><div class="ttdeci">ws2_runtime_error(const std::string &amp;msg)</div><div class="ttdoc">Constructs an exception using WSAGetLastError()</div><div class="ttdef"><b>Definition:</b> WinSock2.h:52</div></div>
<div class="ttc" id="aclasswinstd_1_1ws2__runtime__error_html_af6984de4ac18e732a6844f379d67c52f"><div class="ttname"><a href="classwinstd_1_1ws2__runtime__error.html#af6984de4ac18e732a6844f379d67c52f">winstd::ws2_runtime_error::msg</a></div><div class="ttdeci">tstring msg(DWORD dwLanguageId=0) const</div><div class="ttdoc">Returns a user-readable Windows error message.</div><div class="ttdef"><b>Definition:</b> WinSock2.h:70</div></div>
<div class="ttc" id="agroup___win_sock2_a_p_i_html_ga73a783d5ebf3d1af2a565cb78062b5b6"><div class="ttname"><a href="group___win_sock2_a_p_i.html#ga73a783d5ebf3d1af2a565cb78062b5b6">winstd::taddrinfo</a></div><div class="ttdeci">addrinfo taddrinfo</div><div class="ttdoc">Multi-byte / Wide-character SID wrapper class (according to _UNICODE)</div><div class="ttdef"><b>Definition:</b> WinSock2.h:161</div></div>
<div class="ttc" id="agroup___win_sock2_a_p_i_html_gad222deae09d76241e018a2e350aa1ec9"><div class="ttname"><a href="group___win_sock2_a_p_i.html#gad222deae09d76241e018a2e350aa1ec9">GetAddrInfoW</a></div><div class="ttdeci">static INT GetAddrInfoW(PCWSTR pNodeName, PCWSTR pServiceName, const ADDRINFOW *pHints, winstd::waddrinfo &amp;result)</div><div class="ttdoc">Provides protocol-independent translation from a host name to an address.</div><div class="ttdef"><b>Definition:</b> WinSock2.h:194</div></div>
<div class="ttc" id="agroup___win_sock2_a_p_i_html_gae9f6e09e2e81a57135dc30bc999d27af"><div class="ttname"><a href="group___win_sock2_a_p_i.html#gae9f6e09e2e81a57135dc30bc999d27af">GetAddrInfoA</a></div><div class="ttdeci">static INT GetAddrInfoA(PCSTR pNodeName, PCSTR pServiceName, const ADDRINFOA *pHints, winstd::addrinfo &amp;result)</div><div class="ttdoc">Provides protocol-independent translation from a host name to an address.</div><div class="ttdef"><b>Definition:</b> WinSock2.h:176</div></div>
<div class="ttc" id="agroup___win_std_general_html_ga8081292a94f5d070e644bdc90662d1fc"><div class="ttname"><a href="group___win_std_general.html#ga8081292a94f5d070e644bdc90662d1fc">winstd::tstring</a></div><div class="ttdeci">std::string tstring</div><div class="ttdoc">Multi-byte / Wide-character string (according to _UNICODE)</div><div class="ttdef"><b>Definition:</b> Common.h:338</div></div>
<div class="ttc" id="agroup___win_std_str_format_html_ga78bf19793ce080f2826f56f228d64623"><div class="ttname"><a href="group___win_std_str_format.html#ga78bf19793ce080f2826f56f228d64623">FormatMessage</a></div><div class="ttdeci">static DWORD FormatMessage(DWORD dwFlags, LPCVOID lpSource, DWORD dwMessageId, DWORD dwLanguageId, std::basic_string&lt; char, _Traits, _Ax &gt; &amp;str, va_list *Arguments)</div><div class="ttdoc">Formats a message string.</div><div class="ttdef"><b>Definition:</b> Common.h:299</div></div>
<div class="ttc" id="agroup___win_std_str_format_html_gac397f655a858a069b3e521940af64331"><div class="ttname"><a href="group___win_std_str_format.html#gac397f655a858a069b3e521940af64331">sprintf</a></div><div class="ttdeci">static int sprintf(std::basic_string&lt; _Elem, _Traits, _Ax &gt; &amp;str, const _Elem *format,...)</div><div class="ttdoc">Formats string using printf().</div><div class="ttdef"><b>Definition:</b> Common.h:284</div></div>
<div class="ttc" id="agroup___win_std_sys_handles_html_ga419efffd12b5c96abc8a275ba375ca60"><div class="ttname"><a href="group___win_std_sys_handles.html#ga419efffd12b5c96abc8a275ba375ca60">WINSTD_HANDLE_IMPL</a></div><div class="ttdeci">#define WINSTD_HANDLE_IMPL(C, INVAL)</div><div class="ttdoc">Implements default constructors and operators to prevent their auto-generation by compiler.</div><div class="ttdef"><b>Definition:</b> Common.h:163</div></div>
<div class="ttc" id="agroup___win_std_sys_handles_html_gacf43e306968474166474090690857e1c"><div class="ttname"><a href="group___win_std_sys_handles.html#gacf43e306968474166474090690857e1c">winstd::handle&lt; PADDRINFOA, NULL &gt;::invalid</a></div><div class="ttdeci">static const PADDRINFOA invalid</div><div class="ttdoc">Invalid handle value.</div><div class="ttdef"><b>Definition:</b> Common.h:617</div></div>
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